ata: libata-scsi: rework ata_dump_status to avoid using pr_cont()
pr_cont() has the problem that individual calls will be disrupted
under high load, causing each call to end up on a single line and
thereby mangling the output.
So rework ata_dump_status() to have just one call to ata_port_warn()
and avoid this problem.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 11fb046..a16ef00 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -668,7 +668,7 @@ static void ata_qc_set_pc_nbytes(struct ata_queued_cmd *qc)
/**
* ata_dump_status - user friendly display of error info
- * @id: id of the port in question
+ * @ap: the port in question
* @tf: ptr to filled out taskfile
*
* Decode and dump the ATA error/status registers for the user so
@@ -678,37 +678,32 @@ static void ata_qc_set_pc_nbytes(struct ata_queued_cmd *qc)
* LOCKING:
* inherited from caller
*/
-static void ata_dump_status(unsigned id, struct ata_taskfile *tf)
+static void ata_dump_status(struct ata_port *ap, struct ata_taskfile *tf)
{
u8 stat = tf->command, err = tf->feature;
- pr_warn("ata%u: status=0x%02x { ", id, stat);
if (stat & ATA_BUSY) {
- pr_cont("Busy }\n"); /* Data is not valid in this case */
+ ata_port_warn(ap, "status=0x%02x {Busy} ", stat);
} else {
- if (stat & ATA_DRDY) pr_cont("DriveReady ");
- if (stat & ATA_DF) pr_cont("DeviceFault ");
- if (stat & ATA_DSC) pr_cont("SeekComplete ");
- if (stat & ATA_DRQ) pr_cont("DataRequest ");
- if (stat & ATA_CORR) pr_cont("CorrectedError ");
- if (stat & ATA_SENSE) pr_cont("Sense ");
- if (stat & ATA_ERR) pr_cont("Error ");
- pr_cont("}\n");
-
- if (err) {
- pr_warn("ata%u: error=0x%02x { ", id, err);
- if (err & ATA_ABORTED) pr_cont("DriveStatusError ");
- if (err & ATA_ICRC) {
- if (err & ATA_ABORTED)
- pr_cont("BadCRC ");
- else pr_cont("Sector ");
- }
- if (err & ATA_UNC) pr_cont("UncorrectableError ");
- if (err & ATA_IDNF) pr_cont("SectorIdNotFound ");
- if (err & ATA_TRK0NF) pr_cont("TrackZeroNotFound ");
- if (err & ATA_AMNF) pr_cont("AddrMarkNotFound ");
- pr_cont("}\n");
- }
+ ata_port_warn(ap, "status=0x%02x { %s%s%s%s%s%s%s} ", stat,
+ stat & ATA_DRDY ? "DriveReady " : "",
+ stat & ATA_DF ? "DeviceFault " : "",
+ stat & ATA_DSC ? "SeekComplete " : "",
+ stat & ATA_DRQ ? "DataRequest " : "",
+ stat & ATA_CORR ? "CorrectedError " : "",
+ stat & ATA_SENSE ? "Sense " : "",
+ stat & ATA_ERR ? "Error " : "");
+ if (err)
+ ata_port_warn(ap, "error=0x%02x {%s%s%s%s%s%s", err,
+ err & ATA_ABORTED ?
+ "DriveStatusError " : "",
+ err & ATA_ICRC ?
+ (err & ATA_ABORTED ?
+ "BadCRC " : "Sector ") : "",
+ err & ATA_UNC ? "UncorrectableError " : "",
+ err & ATA_IDNF ? "SectorIdNotFound " : "",
+ err & ATA_TRK0NF ? "TrackZeroNotFound " : "",
+ err & ATA_AMNF ? "AddrMarkNotFound " : "");
}
}
@@ -1662,7 +1657,7 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
cmd->result = SAM_STAT_GOOD;
if (need_sense && !ap->ops->error_handler)
- ata_dump_status(ap->print_id, &qc->result_tf);
+ ata_dump_status(ap, &qc->result_tf);
ata_qc_done(qc);
}